What is the primary purpose of hair rollers?

The primary purpose of hair rollers is to add curls or waves to hair. Rollers work by setting the hair in a curled formation as they cool down, which helps to create volume, bounce, and texture. When the hair is wrapped around a roller and allowed to cool, the hair strands take on the shape of the roller, resulting in defined curls or soft waves, depending on the size of the rollers used. This styling method is favored for its ability to create long-lasting curls without the need for excessive heat, which can damage the hair.

While straightening hair is a common styling technique, it typically requires different tools, like flat irons, rather than rollers. Quick drying is often achieved with blow dryers, and although some rollers may help with heat protection if used correctly, their main function is focused on curling or waving the hair.